The previous migration added `len(...) > 0` assertions to tests that
previously only checked equivalence between the deprecated and new
API. These assertions are too strict because the parametrized
`query_filter` cases legitimately produce empty result sets.
Drop the `> 0` assertion and rely on `request_with_validation` to
verify the response is well-formed and HTTP OK.
Co-authored-by: Cursor <cursoragent@cursor.com>